on monday. >>> and titans of talk. oprah winfrey and david letterman one-on-one in a frank interview about her early life, hard times and accomplishments. >> if there was a number one reason why you've been able to be successful in your life, for me, it is listening to that still small voice. captioning funded by cbs >>> good morning, everybody. good to be with you. i'm terrell brown. u.n. ambassador susan rice travels to capitol hill today to confront some of her toughest critics. she'll discuss and explain her comments about the deadly attack on the u.s. consulate in libya, the first of several meetings with key lawmakers, a test of sorts as the president considers nominating rice to be the next secretary of state. margaret brennan has our report. >> reporter: u.n. ambassador susan rice hopes to put that controversy to rest, and if she succeeds, it would remove the largest political hurdle to her nomination as secretary of state. at 9:30 this morning, rice will meet behind closed doors with three of her most vocal critics, republican senators john mccain, kelly ie ya and lindsey graham.